danny0405 commented on issue #11090:
URL: https://github.com/apache/hudi/issues/11090#issuecomment-2097357620

   >  clean.retain_commits was 1
   
   That means each time a new version of file generated, the old one would be 
deleted, for "COW" table, there is very high possibility you would encouter 
file missing exception because files are being deleted for every new commits. 
Can you just keep the `clean.retain_commits` as default to give the streaming 
reader some buffer time to read the new files.
   
   > By the way,how to configue the clean.async.enabled
   
   Should be true if you do not want redundant legacy files on the filesystem.


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